/// <summary>
/// Reads data from incoming stream (if bytes exist in buffer). Tries to construct
/// one or more game packets. Fires event for each valid game packet.
/// </summary>
private void ReadData()
{
try
{
//vars
List <byte[]> packets = new List <byte[]>();
//lock queue
lock (_incomingQueue)
{
//return if zero bytes
if (_incomingQueue.Count == 0)
{
return;
}
//queue overflow?
if (_incomingQueue.Count > 100000)
{
Log.Write($"ReadData: Incoming byte queue overflow");
_incomingQueue.Clear();
}
//loop
while (true)
{
//break if zero bytes
if (_incomingQueue.Count == 0)
{
break;
}
//find first four matching footer bytes (terminator)
int firstIndex = FindToken(_incomingQueue, PacketBase.PACKET_FOOTER);
//break if no footer
if (firstIndex == -1)
{
Log.Write($"ReadData: Incomplete data ({_incomingQueue.Count} bytes) left in buffer");
break;
}
//dequeue bytes
int count = firstIndex + 4;
byte[] bytes = _incomingQueue.Dequeue(count).ToArray();
//add to list
packets.Add(bytes);
}
}
//return if no new packets
if (packets.Count <= 0)
{
return;
}
//loop through packet (candidates)
foreach (byte[] bytes in packets)
{
//reject if invalid
PacketBase packet = PacketBase.FromBytes(bytes);
if (packet == null)
{
Log.Write($"ReadData: Invalid packet from '{_remoteIP}' with {bytes.Length} bytes was discarded");
continue;
}
//fire event
PacketReceived?.InvokeFromTask(this, packet); //WARNING, CHANGED THIS!!
}
}
catch (Exception ex)
{
_stop = true;
Log.Write("ReadData: Error reading or processing data");
ErrorHandler.LogError(ex);
}
}